Sunday Afternoon Maths II

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consecutive numbers decahedra angles factorials 3d shapes geometric means palindromes clocks star numbers determinants ave scales digital products advent prime numbers money surds taxicab geometry tiling logic axes squares square grids irreducible numbers planes remainders addition quadratics sums cryptic crossnumbers digits people maths books sum to infinity balancing arrows multiplication floors fractions medians sport gerrymandering 2d shapes even numbers games cards hexagons differentiation matrices chocolate shape crossnumbers dominos cubics median dates mean proportion factors regular shapes odd numbers menace unit fractions colouring averages grids cryptic clues routes tournaments consecutive integers perimeter neighbours polygons wordplay time numbers grids tangents integers shapes expansions combinatorics coordinates chalkdust crossnumber square roots percentages ellipses quadrilaterals polynomials dice doubling pentagons products sequences numbers area number algebra bases indices lines circles folding tube maps integration functions coins triangles trigonometry spheres probability geometry square numbers triangle numbers volume albgebra pascal's triangle elections sets the only crossnumber crosswords perfect numbers cube numbers digital clocks range calculus symmetry chess division christmas graphs geometric mean parabolas partitions speed complex numbers rectangles means multiples dodecagons powers rugby binary probabilty